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A validation study of an interviewer-administered short food frequency questionnaire in assessing dietary vitamin D and calcium intake in swedish children

Söderberg, Lotta LU ; Lind, Torbjörn; Åkeson, Pia Karlsland LU ; Sandström, Ann Kristin; Hernell, Olle and Öhlund, Inger (2017) In Nutrients 9(7).
Abstract

Vitamin D and calcium are essential nutrients with a range of biological effects of public health relevance. This study aimed to validate a short food frequency questionnaire (SFFQ) against a three-day food record (3D record), assessing the intake of vitamin D and calcium in Swedish children during wintertime. In a double-blinded, randomized food-based intervention study on the effect of feeding different daily doses of vitamin D supplement to 5–7-year-old children (n = 85), 79 (93%) participants completed SFFQ1 at baseline and SFFQ2 after the intervention, and 72 were informed to fill in a 3D record. The 28 (39%) children who completed the 3D record were included in this validation study. The baseline level of serum-25 hydroxy vitamin... (More)

Vitamin D and calcium are essential nutrients with a range of biological effects of public health relevance. This study aimed to validate a short food frequency questionnaire (SFFQ) against a three-day food record (3D record), assessing the intake of vitamin D and calcium in Swedish children during wintertime. In a double-blinded, randomized food-based intervention study on the effect of feeding different daily doses of vitamin D supplement to 5–7-year-old children (n = 85), 79 (93%) participants completed SFFQ1 at baseline and SFFQ2 after the intervention, and 72 were informed to fill in a 3D record. The 28 (39%) children who completed the 3D record were included in this validation study. The baseline level of serum-25 hydroxy vitamin D [S-25(OH)D] was used as a biomarker. The correlation between all three instruments were moderate to strong. SFFQ2 and the 3D record correlated moderately to S-25(OH)D. Bland-Altman analysis showed that SFFQ2 overestimated vitamin D intake by on average 0.6 µg/day, (limits of agreement (LOA) 5.7 and −4.6 µg/day), whereas the intake of calcium was underestimated by on average 29 mg/day, (LOA 808 and −865 mg/day). Finally, the validity coefficient calculated for vitamin D using the method of triad was high (0.75). In conclusion, this SFFQ, assessed by a dietician, is a valid tool to assess dietary vitamin D and calcium intake in groups of young children.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
25-hydroxy vitamin D, Child, Dietary assessments, Three-day food record
in
Nutrients
volume
9
issue
7
publisher
MDPI AG
external identifiers
  • scopus:85022022876
  • wos:000406679700039
ISSN
2072-6643
DOI
10.3390/nu9070682
language
English
LU publication?
yes
id
b1b90b74-b116-4557-a8e8-ba84c71ac989
date added to LUP
2017-07-24 10:56:30
date last changed
2018-01-07 12:12:42
@article{b1b90b74-b116-4557-a8e8-ba84c71ac989,
  abstract     = {<p>Vitamin D and calcium are essential nutrients with a range of biological effects of public health relevance. This study aimed to validate a short food frequency questionnaire (SFFQ) against a three-day food record (3D record), assessing the intake of vitamin D and calcium in Swedish children during wintertime. In a double-blinded, randomized food-based intervention study on the effect of feeding different daily doses of vitamin D supplement to 5–7-year-old children (n = 85), 79 (93%) participants completed SFFQ1 at baseline and SFFQ2 after the intervention, and 72 were informed to fill in a 3D record. The 28 (39%) children who completed the 3D record were included in this validation study. The baseline level of serum-25 hydroxy vitamin D [S-25(OH)D] was used as a biomarker. The correlation between all three instruments were moderate to strong. SFFQ2 and the 3D record correlated moderately to S-25(OH)D. Bland-Altman analysis showed that SFFQ2 overestimated vitamin D intake by on average 0.6 µg/day, (limits of agreement (LOA) 5.7 and −4.6 µg/day), whereas the intake of calcium was underestimated by on average 29 mg/day, (LOA 808 and −865 mg/day). Finally, the validity coefficient calculated for vitamin D using the method of triad was high (0.75). In conclusion, this SFFQ, assessed by a dietician, is a valid tool to assess dietary vitamin D and calcium intake in groups of young children.</p>},
  articleno    = {682},
  author       = {Söderberg, Lotta and Lind, Torbjörn and Åkeson, Pia Karlsland and Sandström, Ann Kristin and Hernell, Olle and Öhlund, Inger},
  issn         = {2072-6643},
  keyword      = {25-hydroxy vitamin D,Child,Dietary assessments,Three-day food record},
  language     = {eng},
  month        = {07},
  number       = {7},
  publisher    = {MDPI AG},
  series       = {Nutrients},
  title        = {A validation study of an interviewer-administered short food frequency questionnaire in assessing dietary vitamin D and calcium intake in swedish children},
  url          = {http://dx.doi.org/10.3390/nu9070682},
  volume       = {9},
  year         = {2017},
}